Area of Triangles and Parallelograms

Question 1

Create a rectangle around the parallelogram. The dimensions of this rectangle are .

Revolt · Accepted Answer

C: 11 by 20

Question 2

The coordinates of the vertices of the triangle are (–8, 8), (–8, –4), and .

Revolt · Accepted Answer

C: (10, –4)

Question 3

Find the area of the four right triangles surrounding the parallelogram. The total area of the triangles is square units.

Revolt · Accepted Answer

C: 110

Question 4

Consider QR the base of the triangle. The measure of the base is b = 18 units, and the measure of the height is h = units.

Revolt · Accepted Answer

D: 12

Question 5

Subtract the triangle areas from the area of the rectangle to obtain the area of the parallelogram. The area of parallelogram ABCD is square units.

Revolt · Accepted Answer

B: 110

Question 6

The area of triangle PQR is square units.

Revolt · Accepted Answer

B: 108

Area of Triangles and Parallelograms Answers